1
Q
What is specificity
A
How many healthy people does the test correctly classify as healthy.
2
Q
How do you calculate specificity
A
specificity = true negative ÷ true negative + false positive
3
Q
What is sensitivity
A
The number of sick people that the test correctly classified as sick.
4
Q
How do you calculate sensitivity
A
sensitivity = true positives ÷ true positives + false negatives
5
Q
What is the positive predictive value
A
If the test is positive, what is the probability that the patient has the disease
6
Q
How do you calculate PPV
A
PPV = true positive ÷ true positive + false positive
7803
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